it allowed european nations to undertake transoceanic voyages without fear of getting lost
No one knows. All we know is that the Chinese and Europeans helped to make the Chinese compass.
To invent something you have to make it. It was invented.
The sailors could finally figure out where they were and what direction they were headed, using the astrolabe and stars to track their progress.That way, they didn't have to guess where they were out at sea.
They knew that she knew how to make one.
I used my compass to find my way out of the forest.
To make updated maps of the seas
the astrolabe and the compass
Astrolabe
The cause is the Chinese invention of the magnetic compass. The effect is the voyage of Zheng He. The invention of the magnetic compass allowed Zheng He to make his voyage.
Gold and metal but mostly metal because a astrolabe is made of gold.
Iron is magnetic
i have a saracom magnetic compass & it has big bubble inside. i have to remove bubble.what type of fluid i have to use, compass make: SARACOM model: MC180
A compass is a scientific instrument used to locate the north magnetic pole. The magnetic changes in the Earth's core make the north magnetic pole move over time.
No one knows. All we know is that the Chinese and Europeans helped to make the Chinese compass.
To invent something you have to make it. It was invented.
Nothing. That's exactly what a compass does ... as long as it's free to turn, and there are no ferrous metals or other sources of magnetic fields nearby.
Did this at school http://www.madsci.org/experiments/archive/860218908.Es.html